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urinate(Verb)

To pass urine from the body.

1877 See that the bladder is emptied just before he goes to bed. Wake him once or twice during the night, and have him urinate. Use all possible means to remove the cause of irritation by giving him plenty of out-of-door exercise and a very simple, though nutritious, diet. u2014 John Harvey Kellogg, Plain facts for Old and Young ....